title: [Composition of the folded chromosome from Anabaena variabilis].
abstract: A "heavy" nucleoid (folded chromosome) from A. variabilis has been isolated in preparative amounts. The composition of the folded chromosome and that of a more simple DNA--protein complex isolated from the "heavy" nucleoid of A. variabilis by chromatography on a column with methylated albumin (MAK) were studied. It was shown that the "heavy" nucleoids contain total cell DNA in a complex with the definite membrane fragment, which can be discovered by a large number of membrane proteins, phospholipids, lipopolysaccharides and amino sugars. After MAK chromatography the DNA--protein complex also contains total cellular DNA, a negligible amount of membrane polypeptides and noticeable amounts of phospholipids and lipopolysaccharides.
mesh_terms: D002875:Chromosomes / Q000032:analysis*; D000458:Cyanobacteria / Q000235:genetics*; D004247:DNA / Q000032:analysis; D008563:Membrane Lipids / Q000032:analysis; D008565:Membrane Proteins / Q000032:analysis; D009685:Nuclear Envelope / Q000032:analysis; D009698:Nucleoproteins / Q000032:analysis
chemical_list: D008563:Membrane Lipids; D008565:Membrane Proteins; D009698:Nucleoproteins; D004247:DNA
vernacular_title: Sostav kompaktnoi khromosomy Anabaena variabilis.